Stone, I'm assuming a contact printing frame. In the fifties my grandfather had a 6x9 wooden framed glass topped printing frame. First you place the paper in, then your cut negative on top, closed it up then walked out into the back yard.
Exposure (did this as a young boy under my grandfather's eye) was simple. If it was sunny, I walked to the back fence and back with the frame on top of my head. If it was cloudy bright I did an extra half lap and my grandfather took it from me at the back fence and covered it with something, black cloth I think.
If it was wintery cloudy, then I would walk to the back fence up to three times. Usually we did the first exposure, developed the print in the bathroom, then using that as a guide we would print off the rest of the film, which was cut into individual negatives.
My grandfather had a Box Brownie camera, nothing flash.